/**
 * Copyright (C) 2010-2011 Pierre-Yves Ricau (py.ricau at gmail.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed To in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.googlecode.androidannotations.processing;

import static com.sun.codemodel.JExpr.*;

import java.lang.annotation.Annotation;

import javax.lang.model.element.Element;
import javax.lang.model.type.TypeMirror;

import com.googlecode.androidannotations.annotations.App;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JInvocation;

public class AppProcessor implements ElementProcessor {
    
    private static final String ANDROID_APPLICATION_QUALIFIED_NAME = "android.app.Application";

    @Override
    public Class<? extends Annotation> getTarget() {
        return App.class;
    }

    @Override
    public void process(Element element, JCodeModel codeModel, ActivitiesHolder activitiesHolder) {
        ActivityHolder holder = activitiesHolder.getEnclosingActivityHolder(element);

        String fieldName = element.getSimpleName().toString();
        
        TypeMirror elementType = element.asType();
        
        
        JBlock methodBody = holder.beforeCreate.body();
        
        JInvocation getApplication = invoke("getApplication");
        
        String applicationTypeQualifiedName = elementType.toString();
        if (ANDROID_APPLICATION_QUALIFIED_NAME.equals(applicationTypeQualifiedName)) {
            methodBody.assign(ref(fieldName), getApplication);
        } else {
            methodBody.assign(ref(fieldName), JExpr.cast(holder.refClass(applicationTypeQualifiedName), getApplication));
        }

    }

}
